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From: Moti Litochevski on 9 Mar 2010 15:30
On Mar 9, 8:36 pm, Pat Z <patrick....(a)gmail.com> wrote:
> thanks for your reply.
>
> Here is what i did,
>
> 1) knocking off the leading bit.
>    If (I > 32767, choose I = I - 0x8000, else choose I
>
> 2) (I/32768)^2 + (Q/32768)^2 still doesn't equal to 1.
>
> where is wrong?
>
> thanks
> Pat

GMSK is a constant envelope modulation. Normalization is what it is.
Your samples are not normalized if you do not do something to
normalize them.
If you have samples of a GMSK signal and plot the value of I^2+Q^2 it
will be constant.
The mean of the absolute value is the "normalization" factor you are
"expecting".

Moti
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